Polisher.



W. W. LEACH.

POLISHER.

APPLICATION FILED MAR. 29. 19M.

.fl wfiwu Patented Jan.15,1918.

2 SHEETSSHEET 1.

W. W. LEACW.

POLISHER.

APPLICATION FILED MAR.29,1917.

Patented Jan. 15, 1918.

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2 SHEETS-SHEET 2.

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WILLIAM W. LEACH, OF MANSFIELD, OHIO, ASSIGNOR OF ONE-HALF T0 ALBERT lL DAVEY, OF MANSFIELD, OHIO.

POLISI-IER.

Specification of Letters Patent.

Patented Jan. t5, twig.

To all whom it may concern:

Be it known that I, XVILLIAM W. LEACH, a citizen of the United States of America, residing at. Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in Polishers, of which the following is a specification.

This invention relates to an improvement in polishers, primarily for use in cleaning and polishing the periphery of rollers used for rolling sheet steel or the like in rolling mills and catch the refuse and broken parts of the carborundum blocks.

The general type of polisher used for the purpose noted comprises a block or holder in which is-removably clamped carborundum blocks or sections, the device asan entirety being brought into contact with the rolls for the purpose of cleaning and. polishing the surfaces thereof.

The device is movable longitudinally of the rolls and the pressure of the carborundum blocks against the surface of the rolls is regulated at the will of the operator. In the use of this type of polisher, the material cleaned fromthe rolls, and frequently parts of the carborundum blocks shipped or broken therefrom under unusual pressure by the operator, will adhere to or pass between the rolls, and result in a pitting or marring of the roll surface, With a resultant defect in the rolled sheets.

The main object of the present invention is the provision of means carried by and forming part of the polisher, Which means serves to remove from the surfaces of the rolls and catch the guidings and broken parts of the block immediately following the action of the 'carborundum blocks thereon, any and all material which would otherwise have a deleterious effect upon the roll surface.

A further object of the invention is the mounting of the combined cleaners or scrapers and refuse catchers of the present invention in such relation to, and under such connection with' the polishing block proper, that practically universal movement of the combined cleaner and refuse catcher as a whole, with relation to the polishing block, is permitted, whereby a completely effective and automatic adjustment of the combined cleaning and refuse catching device is had under all circumstances, and in any and all positions of the polishing block.

A further object of the invention resides details, will be described in the following specification, reference being had therein to the accompanying drawings, in which Figure l is a view in elevation, partly in section, illustrating the application of the improved polisher.

Fig, 2 is a top plan view, partly in secnon of the combined cleaner and refuse catcher attachment.

Fig. 3 is a side elevation of the same.

Fig. 4 is an end elevation of the same, parts being shown in their relation to the clamping block of the polisher, and various positions of the attachment being shown in dotted lines.

Fig. 5 is an enlarged section on line 5--5 of Fig. 4.

Fig. 6 is a broken perspective of the clamping rod for supporting the attachment.

The general type of polisher with which the invention is to be associated, is here con veutionally shown as comprising a main block 1, of appropriate dimensions, formed in the relatively upper surface thereof with recesses 2, shaped to accurately receive carborundum or other polishing elements 3. The recesses are so shaped, and the polishing elements are so formed that when held in said recesses the said elements present their outer or operating surfaces 4, in positions to engage the peripheral surfaces 5 of the rolls 6. The polishing elements 3 are held in place by a clamping block or plate 7, which overlies and bears upon the polishing elements above the main block, the clamp plate being held in clamped relation through clamping rods 8, which extend through the main block and are formed with wedge projections 9, to seat in corresponding openings 10 in the clamp plate.

The clamping rods are secured at their lower ends below the main block by nuts 11 whereby proper clamping action may be had to secure the polishing elements in place. The main block is provided with a handle 12, whereby the polisher may be initially positioned and pressure of the P0llSl11I1 elements on the surfaces of the rolls an movement of the polisher longitudinally of the rolls is had through a hand-controlled lever 13, of right-angled formation, supported upon a guide bar 14, secured at its respective ends to the roll housing 15. The lever has a terminal foot 16 to underlie the main block. As the guide bar 14: extends longitudinally of the rolls, it is apparent that through this leverthe necessary pressure of the polishing elements on the surfaces of the rolls, and the adjustment of the polisher as a whole longitudinally of the rolls may be readily had at the will of the operator.

In the use of a polisher such as described, and which it is understood is of usual commercial form, no provision is made, beyond that of gravital influence for taking care of the refuse cleaned from the rolls'by the polishing elements. It frequently happens that as a result of undue pressure by the operator, portions of the polishing elements will be chipped therefrom, and this, if permitted to remain in contact with or pass between the rolls will necessarily result in marring or pitting the roll surface.

To obviate this diiiiculty, and to insure that the surface of the rolls will be thoroughly and effectively cleaned of any and all material thereon which would otherwise have a deleterious effect upon the roll surface, there is provided an improved cleaner and refuse catcher, forming the subject matter of this invention.

'This combined cleaner and refuse catcher comprises a supporting plate 17, mounted above the clamp plate, and so connected as to have practically universal movement with respect thereto. To provide for this connection of the supporting plate, the clamping rods 8 are extended above the clamp plate, such extensions 18, passing through openings 19 in the supporting plate, which openings are preferably elongated transversely of the supporting plate and of greater width than the diameter of the clamping rods. The openings 19 are therefore in both the major and minor dimensions materially greater than the diameter of the clamping rods, to permit free play of the supporting plate with respect to the clamp plate. Endwise separation of the supporting plate from the clamping rods is prevented by terminal nuts 20 upon the upper ends of said rods,

above the supporting plate. The respective side edges of the supporting plate are formed to present onemember of a hinge connection, the cooperating member being formed on the combined cleaners and refuse catchers 2121.

The combined cleaners and refuse catchers here shown are crescent shaped members with side walls 22, merging at the respective ends into coincidence with the similar edges of the bottom wall, whereby to present a comparatively sharp scraping or cleaning edge 23 at the free end of each cleaner and refuse catcher and provide a depression or groove 23 forming a pocket. The edges are adapted to engage the surface of the rolls and refuse catcher and act to scrape or clean the material therefrom. The combined cleaners and refuse catchers proper open outwardly, that is, present their open sides next the surfaces of the roll so that when said cleaners are in operative positions with respect to the rolls, as shown in Fig. 1, they present in effect receptacles or pockets in which a very considerable portion of the refuse scraped from the rolls or broken parts from the carborundum blocks will be caught and retained in the upper pocket and prevented from Working between the rolls by the edge of the lower pocket.

The combined cleaners and refuse catchers proper are held against movement in the relatively outward direction, by lips 24, projecting from the inner surface of the cleaners, and engaging at their inner ends beneath the head 25 of a rivet 26, secured to and projecting outwardly from the central portion of the supporting plate 17. The combined cleaners and refuse catchers are further held at this limit of outward movement, while at the same time comparatively free to yield inwardly, by tensioning means, comprising spring-arms 27, preferably forming the terminals of a coil 28, encircling one of the clamping rods 8, which is extended upwardly for this purpose. The extension of the clamping rod 8 is suflicient to position the tensioning member above the rivet head, the coil of said member being held on the rod between holding means 29, as cotter pins or the like. The spring arms 27, which are ofconsiderable length, have lateral terminals 30, engaging elongated openings 31, in the inner walls or bottoms of the combined cleaners and refuse catchers. As the polish ing device, with the attached combined cleaners and refuse catchers is moved into cotiperation with the rolls, the surfaces of said rolls force the combined cleaners and refuse catchers proper inwardly against the tension of the spring arms 27, until when the polishing elements are in proper position with relation to the surfaces of the rolls, the scraping edges of the combined cleaners and refuse catchers will be held under spring pressure against the roll surfaces above the polishing elements in the direction of rotation of the rolls. In the normal positions of the parts, the supporting plate 17 is, of course, held above and in spaced relation to the clamp plate 7, and from theuniversal connection of the supporting plate with the clamp plate, it is apparent that the supporting plate may move vertically, horizontally in angular relation to the supporting plate 17, or tilt laterally to a. degree limited only by the space between said supporting plate and clamp plate and slots formed in the supporting plate. This universal movement of the supporting plate is important, in that it permits a ready accommodation, and instant automatic adjustment of the cleaners, to compensate for any irregularities of the rolls or polishing elements. As a result of this, combined with the independent spring pressed action of the combined cleaners and refuse catchers proper, it is apparent that each combined cleaner and refuse catcher will be automatically maintained in contact with its particular roll surface, under any and all conditions of action, and hence all refuse material will be scraped or cleaned from the surfaces of the rolls or caught in the groove or depression of the combined cleaner and refuse catcher.

The combined cleaner and refuse catcher construction, which forms the subject matter of the present invention, is here shown as structurally adapted for cooperation with the particulartype of polisher indicated. It is, of course, apparent that any and all specific changes necessary to adapt the general type of combined cleaner and refuse catcher here shown and described to any other particular type of polisher proper, is necessarily an incident of the present invention, the sole requirement in this particular being that the supporting plate of the combined cleaner and refuse catcher structure be so mounted, with relation to the polisher proper, as to have practically a universal play thereon, in order that a perfect compensation for irregularities of the rolls, their vibration in operation, and irregularities of the polishing elements may be had.

What is claimed as new, is 4 1. A polisher for use with a plurality of rolls, including a. combined double scraper and refuse catcher and a universal connection between such scraper and ,-catcher and such polisher.

2. A polisher for use with a plurality of rolls, including a combined double scraper and refuse catcher carried by the polisher and means for supporting the scraper and catcher on the polisher to permit a free movement of such scraper and polisher toard and from the polisher.

3. A polisher for use with a plurality of rolls, including a combined double scraper and refuse catcher, a support on the polisher, and means carried by the scraper and catcher to engage the support to permit a free tilting movement of such scraper and catcher with respect to the polisher.

4. A. polisher for use with a plurality of rolls, including a supporting plate mounted for universal movement with respect to the polisher, and a combined double scraper and refuse catcher having hinged connection with said plate.

5. A polisher for use with a plurality of rolls, comprising polishing means, a sup porting plate having a universal connection with the polisher, a combined scraperand refuse-catcher for cooperation with each roll, each scraper having hinged connection with the plate, and a spring mounted on the plate and engaging both scrapers to exert pressure thereon toward the rolls.

6. A polisher for use with a plurality of rolls, including a supporting plate having universal connection therewith, and a plurality of spring-pressed combined scrapers and refuse catchers movably connected with the plate.

7. A combined scraping and refuse catching attachment for roll polishers, comprising a supporting plate, combined cleaners and refuse catchers having hinged connection therewith, means carried by the plate to exert an outward pressure on the combined cleaners and. refuse catchers, and cooperating means carried by the plate and combined cleaners and refuse catchers to limit the outward movements of the latter.

8. A combined scraping and refuse catching attachment for roll polishers, comprising a supporting plate, combined cleaners and refuse catchers having hinged connection therewith, spring arms carried by the plate and engaging the combined cleaners and refuse catchers, and limiting stops carried by said combined cleaners and refuse catchers and plate to limit movement of said combined cleaners and refuse catchers.

9. ,A combined scraping and refuse catching attaclnnent for roll polishers, comprising a supporting plate, crescent shaped combined cleaners and refusecatchers of hollow formation having hinged connection with the plate, spring means for exerting an outward pressure on said combined cleaners and refuse catchers, and cooperating stops carried by the plateand combined cleaners and refuse catchers.

10'. A roll polisher comprising a main block forined with recesses to receive polishing elements, a clamp plate to overlie said elements, clamping rods engaging the block and clamp plate to hold the latter in damp ing cooperation, a combined scraper and refuse catcher supporting plate loosely mounted upon said rods, above the clamp plate, and combined cleaners and refuse catchers having connection with the supporting plate.

11. The combination in a roll polisher, of

means to polish both rolls simultaneously, means for catching the. refuse from one roller and at the same time scraping said roller. means for scraping the other roller and preventing foreign substances from working between both of .said rollers; said scraping meaus being mounted for universal movement to accommodate itself to the irregularity of both rolls.

12. In a roll polishing device. means to polisha plurality of rollssimultaneously, separate means for simultaneously scraping both rolls which is mounted upon the polishing means to permit of universal movement with respect to the rolls.

13. In a roll polishing device, means to polish a pluralty of rolls sinmltaneouslv, separate means for simultaneously scraping 'both rolls which is mounted upon the polish- 20 ing means to permit of universal movement:

with respect to the rolls. and a single means of yieltinglv maintaining said scraping means in contact with both rolls.

H. In a polishing device. means for polishing a pluralit of rolls simultaneouslv, scraping means for the rolls attached to the polishing means for pivotal and universal movement with respect to the rolls.

15. In a polishing device, means for polishing a plurality of rolls simultaneously, scraping means for the rolls attached to the polishing means for pivotaland universal movement with respect to the rolls. and means to slide the polishing and attached scraping means in a horizontal direction with respect to the rolls and to force said polishing means in contact with the rolls.

in testimony whereof I atfix my signature.

\VILLIAM WV. LEACH. 

